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Oxalis triangularis requires bright indirect sunlight supplemented with a cool indoor temperature of 15 °C (59 °F). It can tolerate higher indoor temperatures, but will go into dormancy prematurely and/or begin to take on a "tired" appearance if temperatures exceed 27 °C (81 °F) for prolonged periods of time.
This is a high quality video example of an unusual natural phenomenon; plant movement (more specifically a nastic movement in response to light called photonasty). Articles in which this image appears nastic movement. Oxalis triangularis. FP category for this image Wikipedia:Featured pictures/Plants/Others Creator Richard Wheeler
English: Oxalis triangularis (Purple Shamrock) is a classic example of a plant which responds with movement to external stimulus. The leaves open and close in response to varying light levels with the result that they are open during during the day and close at night.
Photonastic movement of Oxalis triangularis in response to light. At lowered light levels the leaves fold down; timelapse recorded at ~750x actual speed and covering a 1.5 hr period of time.
Oxalis triangularis. Several species are grown as pot plants or as ornamental plants in gardens, for example, O. versicolor. Oxalis flowers range in colour from whites to yellow, peaches, pink, or multi-coloured flowers. [11] Some varieties have double flowers, for example the double form of O. compressus.
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2 File:Oxalis Triangularis Photonasty Timelapse.ogv to appear as POTD soon. 1 comment. 3 Reference to plants / botany. 1 comment. 4 Types of Nastic Response.
This tornado in the video appears to be the long-track EF-3 tornado that held together for more than 48 miles from Anhuac to Port Arthur in southeastern Texas. The cyclone had maximum sustained ...